Question about 1997 Pontiac Grand Prix
Using a socket and breaker bar take the tension off of the belt so you can set it aside. Then take the retainer bolt off that's holding the pulley. If it is a center bolt they are some times threaded backwards (check the direction you pulled when releaving the tension and go the other way). Replace the pulley, replace the belt and job done.
Posted on Nov 13, 2009
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Posted on Jan 02, 2017
You will have to replace your serpentine belt tensioner. Call local auto parts store and ask them if you can get just the pully or if you have to by the whole tensioner. Call around and don't be surprised if you can't get what you need from your local auto parts store because some do not carry after market belt tensionrs. In this case you will need to order it from a GM dealership's parts department.
Posted on Jun 23, 2009
Tips for a great answer:
Park the Pontiac in a safe work area and open the hood.
Inspect the top of the black plastic cover that surrounds the fan for the serpentine belt routing diagram. This diagram has the instructions for installing the new serpentine belt around the accessory pulleys.
Inspect the front of the engine and locate the automatic belt tensioner. The tensioner on the 1999 Pontiac model vehicles is located between the alternator and the crankshaft pulley. The tensioner has a pulley on one end with a bolt head in the center of the pulley. Use the bolt head to rotate the tensioner.
Turn the tensioner counterclockwise with the breaker bar and a metric socket. Pull the belt out from under the tensioner pulley with your other hand. Then, slowly let the tensioner retract until it stops.
Pull the belt out of the other remaining pulleys. Then, pull the belt out of the engine bay and lay it on the ground.
Route the new belt around the crankshaft pulley. Then, route the new belt around the other remaining pullleys by using the serpentine belt routing diagram for instructions.
Rotate the tensioner pulley counterclockwise with the breaker bar and socket. Then, slide the new belt under the tensioner pulley. Slowly let the tensioner retract until it stops. The tensioner pulls all of the slack out of the belt and brings the new belt to the proper tension. Remove the breaker bar and socket from the tensioner pulley.
Inspect the new belt to ensure that it is seated inside of all the accessory pulleys as directed by the diagram. Then, crank the engine and allow it to run for about 15 seconds. Turn the engine off. Inspect the belt again once more to ensure that
the belt is still around each pulley. Close the hood.
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